Suction carpet-sweeper.



To all whom it may concern .Teams M. sPivGLnfa, or CANTON, onze,Assrenon ro THE HOOVER. suorron swnnnnn COMPANY, OF New ennarn, Ome, ACORPORATION or Onro.

sUcTIoiv onnrnr-swsnrna.

Speccation of Letters Patent.

Patented. Aug. 31, 1915.

Beit known that I, JAMEs'M. SrAivGLER, a citizen oi' the United States,reslding at Canton,.in the county of Stark and State oi' Ohio, haveinvented anew and useful Suction Carpet-Sweeper, of which the followingis a specification. l

This invention relates to improvements 1n carpet sweepers provided withmeans for producing a suction or strong lnrusn of air into' the device,which inrush of air operates in conjunction with the brush lfor thepurpose of brushing and pneumatically .clean ing floors and 'licorcoverings and similar surfaces.

The objects of this invention areto generally improve devices of thecharacter mentioned and to provide a construction which wilA be composedof few and simple parts put together in a practical, mechanical pmanner, the various parts being so exactly and peculiarly adapted toeach other that they combine to reduce a very superior, substantial andefiicient carpet sweeper.

Onev of the important Objects of the in vention is to provide a brushand brush adjustment in oombipation with a h driving wheel and sweepervsupporting adJustment for the purposeof regulating and adjusting thesweeper in accordance with the class of work which it is intended to doand to accommodate vthe natural wear of the brush.

, These objects, together with other objects apparent to those skilledin the art may be attained by the construction illustrated in theaccompanaying drawings, ,although the invention may be embodied in otherforms, the construction illustrated being chosen by way of example.

In the drawings Figure 1 is a perspective view of a suction carpetsweeper embodying my invention. Fig. 2 is an inside perspective view ofone of the driving wheels rcmoved `from its bearing. Fig. 3 is anoutside end, fragmentary elevation of one of the front corners of thedevice. Fig. l is a similar' View showing the driving wheel removed.Fig. 5'is a sectional View taken on the line 5-5 of Fig. 3. Fig. 6 is aview similar to Fig. 3, but with both driving wheel, wheel plate andbrush hanger removed. Fig. 7 is an inner side elevation of one of thewheel plates and the brush Yhanger connected thereto. Fig. 8 is a per-.spective view oi one of the brush hangers.

Fig. 9 is a 'perspective view of the wheelplate. Fig. 10 is aperspective view of the lubricating' packing and wheel retaining screwand washer. Fig. li is a sectional view through the brush casing on theline Elddili ll-ll of Fig'G. Fig. 12 isa longitudinal i sectional viewthrough the brush.

Throughout the several views similar reference numeralsindicate similarparts.

More specifically describing the construction illustrated in saiddrawings, the numeral l indicates the .main casing of the carpet sweeperwithin which is mounted a fan, llsuch as is well known to those sldlledin the art and which isadapted to exhaust the air from said easing intothe dust bag 2,

which is connected to the outlet 3 of the casing and serves as areceptacle for the dirt and dust lifted by the device. Said fan ispreferably driven by an electric motor a mounted upon the casing, theflexible conductor 5 leading through the switch 6 serving to transmitthe current from any suitable source to the motor. The handle 7 4ispivotally connected to the casing 1 by means of the yoke 8 and isemployed for manually moving the sweeper over the floor or surface to becleaned. v

The forward portion of the casing 1 is provided with a brush casing 9which eX- tends transversely and is arranged at' a somewhat lower levelthan the main portion of the casing l. The interior of said casing 9 issubstantially cylindrical, but the .side of said casing adjacent thefloor is somewhat squared olf on a lane parallel with the floor, asshown in Fig. 6, and a slotelike rush and intake opening at 10 extendingparallel with the axis of cylindricity of the to accomplish its workmore thoroughly and to assist said inrush of air in picking up particleswhich have a tendency to adhere to the surfacel being cleaned. The motorand fun portion oi: the device having been properly constructedand-adjusted by the manufacturer require little or no attention to theend of the casing 9, the slotted character of the apertures 29 and 30permitting some rotary adjustment of the wheel plate about theJ axis ofcurvature of said casing 9 and the said'screws being adapted to clampthe plate to the 'fiange 14 in any desired adjustment.

For the purpose `of holding the wheel plate in proper position withreference to the axis of curvature of the casing 9 the inner side of thewheel plate is provided with integral curved .ribs 33 which engage theinner edge of the tlange 14, as clearly illustrated in Figll.

Qn the outer side of the wheel plate substantially at the center of theportion 27 is arranged the outstanding wheel stud 34 for the attachmentof the driving wheel. At its free end said stud is provided with arecess 35, from which recess an oil conducting aperture 36 leads to theouter bearing surface o'f the stud. From the bottom of said recess 35 ascrew threaded aperture 37 leads entirely'through the wheel plate. Y

On the inner side of each wheel plate is arranged a brush hanger, one ofsaid hangers being illustrated in Fig. S. It will be noted that saidhanger is provided with a connecting arm 38 andan adjusting head 39 'andintermediate said head and said arm an outward extending pinion housing40 is pro-y vided. Said housing 40 is adapted to eX- tend through theaperture 28 of the wheel plate to whichthe hanger is attached and saidhousing is cut away at the side adjacent the arm 38. An end wall 41forms an integral portion of said housing 40 and an aperture 42 in saidwall 41 is adapted to'receive y the end of the shaft 20. Said aperture42 may be round or elongated, at least' one of the ends of the shaft 2Obeing correspondingly elongated or shaped to prevent rotation of theshaft 20. A screw 43 extending through the aperture 44 in the end of thearm 38 and into ture 37 pivotally connects thebrush hanger to the wheelplate, the aXis of said pivotal connection being co-incident with theaxis of the'stud 34. In the forward part of the portion 26 of the wheelplate is a slot 45 of curved form through which the screw 46 eX- tendsfrom the outer side of the wheel plate into the scr w threaded aperture47 in the head 39. The screw 46 being adjustable within the slot 45permits the brush hanger to be pivotally moved upon the screw as acenter so to move the pinion housing 40 up and down within the aperture28, and said screw 46 may be drawn down firmly to hold the brush hangerin any desired adjustment within the limits of the slot From aninspection of Fig. 11 1t w1ll be noted that the pinions 25 extend intothe the screw threaded aperhousing 40 and the sides of the housing 40adjacent the arms 3S -being cut away said pinions are partially exposedupon the outer .side of the wheel plate, as clearly shown in Fig. 4.

The driving wheels are each of the form particularly illustrated inFigs. 2 and 5. It

will be noted that said wheels comprise an outer disk portion 48provided with a peripheral inturned'iange 49 upon which is suitablymounted a rubber or other friction tire 50. On the inner side of thedisk portion 48 is fiXedly mounted a pinion 51. EX- tending centrallythrough said pinion 51 and disk 48 is a bearing aperture 52 adapted torotatably receive the stud 34. On the outer side of the disk 48 is acircular recess at 53 concentric with the aperture 52 and a retainingwasher 54 is adapted to be rotatably arranged within said recess. A;felt or other lubricating holding packing 55 is adapted to be arrangedwithin the recess 35 in the wheel stud and has a central aperture 56through which the retaining screw 57 extends, as well as thrbugh thewasher 54, said screw 57 being adapted to fit the screw threadedaperture 37, as illustrated in Fig.

5. The stud 34 is of suilicient length to per mit the driving wheel tofreely rotate there- .95 the pinion 51 is adapted to meshwith the onwhen connected thereto as described, and

wheels and lwill be free to rotate in `acpordance with the direction ofrotation of'said driving wheel.

.To move the casing 9 toward or from the surface to be cleaned it isonly necessary'to slightly loosen the screws 31 and 32 and rotate thewheel plates about the axis of curvature of the casing 9, the ribs 33retaining the plates in proper position regardless of their regularadjustment. In this way the driving wheels may be. raised or loweredwith reference to the casing for the purpose of adjusting the intakeslot with reference to the surface to be cleaned. Such adjustment of thedriving wheels, however, does not necessarily alter the adjustmentfofthe brush. To adjust the brush with reference with the wheel plate it isonlymecessary tjowf to hold the brush in its new adjustment. It' is'thus possible to adjust the brush and traveling wheels with relation toeach other and to adjust either brush or wheels with relation to thecasing 9.

Attention should be called-to the packing 55 which when thoroughlysaturated with oil feeds a proper quantity of the same through the'oilaperture 36 to the externalv surface of the Wheel stud and thus'properly lubricates the driving Wheel hearing.

I claim z f l. A suction carpet sweeper comprising an elongatedrotatable brush, a brush casing; therefor having on its underside acleaningA vintake opening, said casing atthe ends provided with endwalls having circular end openings adapted to pernnt endwise re- Inovalof said brush therethrough, Wheely plates connected to the ends of saidv"brush casing on the outer sides of said end Walls and having inwardlydisposed ribs engagi 'ing the curved edges of said end openings "ing,'wheel plates adjustably connected to said casing, traveling wheelsrotatably mounted upon said Wheel. plates, and-a rotatable brusharranged' within said easing and 'adjustably connected to saidwlfieel-plates..

3. A suctioncarpet sweeper comprising a casing provided with a cleaningintale' opening, wheel plates connected tosaid casing and adapted forrotary adjustment with relation to said casing, traveling Wheelsrotatably connected to said Wheel plates upon an aXiseccentric withreference to the axis of saidrotary adjustment, a rot'talolebrusharranged in said casing at said intake opening, brush hanging meanspivotally con 'nected to said Wheel plates In the axis of ,saidtraveling wheels, said brush connected to saidr brush hanging meanseccentrically With reference to the axis of said ivotal connectiomandmeans for operative y con Y necting said Wheels to said brush.

l 4; suction carpetsweeper comprising an elongated rotatable brush, acasing therefor provided on its underside with a cleaning intakeopening, said casing open at the ends and provided at each end with aninwardly disposed, integral, complete, circular flange.

definingv a circular opening adapted to perzmit endwise'removal of saidbrush therethrough, wheel plates on Ithe outer sides of said flanges,closing said circularopenings, and provided on their inner sides withportions engaging the edges of said openin s to permit rotary adjustmentof said p ates .about centers common with the centers of said openings,traveling Wheels rotatably mounted on the outer sides of saidwhee'lplates upon axes eccentric with reference to said centers, and saidbrush, having its ends extended through said Wheel plates and oeratively connected to said traveling whee s. In testimony that I claimthe above, I

have hereunto ,subscribed my presence of two witnesses.

y JAMES M. SPANGLER.

Witnesses.:

WILLIAM H. MILLER, Jenn H. BISHOP.

name'in the l.

